Sash-fastener.



(No Model.)

Patented May 29, !900. H. GREENWOOD.

SASH FASTENER.

(Application filed F65. 21, 1900.)

796/73 G'Pezvvwood UNITED STATES AT NT FFlCEe HARRY GREENYVOOD, OF BARNESBOROUGIT, PENNSYLVANIA. I

SASH-FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 650,678, dated May 29, 1900.

Application filed February 21, 1900. Serial No. 6,071. (No model.)

To all whom it may concern:

Be it known that I, HARRY GREENWOOD, a citizen of the United States, residingat Barnes borough, in the county of Cambria and State of Pennsylvania, have invented certain new and useful Improvements in Sash-Fasteners; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to a sash-fastener.

The object of'the invention is to provide a device of this character which shall be simple of construction, durable in use, and comparatively inexpensive of production, easily applied to the sashes now in general use, and which will automatically lock the sash to the window-frame at any point in its vertical movement.

To this end the invention consists in certain features of construction and combination of parts, which will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a perspective view showing my invention applied, one portion of the sash being broken away to show the end of the fastener engaging the window-frame. Fig. 2 is a longitudinal vertical sectional view illustrating a modified form of my invention.

In the drawings the same reference characters indicate the same parts of the invention.

1 denotes the window-frame, and 2 the lower sash.

3 denotes the fastener, which consists of a single piece of spring-wire of proper strength andresiliency. This wire is shaped to form intermediate its ends a curved finger-piece or lift 3, having downwardly-diverging springarms 4,which terminate in outwardly-projecting arms 5, which extend through transverse apertures 6 in the sash and are provided with rubber buffers 6 and engage the sides of the window-frame. A bearing-plate 7 is secured to the lower rail of the sash and is provided with oblique apertures, through which the spring-arms 4 slide, and staples 8 are secured to the lower rail of the sash and serve as guides for the outwardly-extending ends 5 of the fastenet.

In the form shown in Fig. 2 the fastener is concealed. In this form of my invention I make a V-shaped or flaring aperture 10 in the bottom of the lower rail of the sash and extend the lift 3 up through the recess or aperture, so that it may be conveniently grasped or engaged by the finger. The arms 4 of the fastener are arranged between the slanting walls of the V-shaped aperture or recess and the ends 5 of the fastener extend in grooves 11, formed on the under side of the lower sash. Staples 12 are used to hold the ends in place, while a fastening-plate 13 is used to guide the arms 4. The top wall of the groove on the under side of the lower rail of the sash is tapered upwardly, as shown at 14, to the V- shaped aperture or recess to enable the arms 4 and 5 to have their proper movements.

In operation when it is desired to elevate the lower sash the lift is engaged by the finger, and in the act of raising the sash the ends 5 of the fastener are withdrawn from their engagement with the sides of the sash and the sash is elevated. WVhen it has reached the desired point of elevation, the finger is removed from the lift and the arms 4 spring outward, thus throwing the ends 5 into engagement with the sash and locking it in the desired position. The lift is then engaged by the finger to free the ends 5 from engagement with the frame. The sash may now be low cred, and when the lift is released the fastener will lock the sash in position, so that it cannot be raised from without.

From the foregoing description, taken in connection with the accompanying drawings, the construction, operation, and advantages of my improved sash-fastener will be readily apparent without requiring an extended explanation. It will be seen that the device is simple of construction, that said construction permits of its manufacture at small cost, and that it is exceedingly well adapted for the purpose for which it is designed.

Having thus described the invention, what 5 wire bent outwardly to form a lift, and hav- In testimony whereof I have hereunto set ing downwardly-diverging spring-arms which myhaud in presence of subseribingwitnesses. 10 extend throu h a ertures in the "uidelate T and terminatg in utwardly-exten ding a t-ms, HARRX GREENVOOD' 5 and means connecting the outwardly-extend- Witnesses:

ing arms to the sash to permit of the move- V. A. DONAHEY, ment of said arms, substantially as and for HENRY MCANULTY,

the purpose set forth. 0. V. FLICK. 

